METHOD FOR PRODUCING FOOD DYE OF VEGETABLE RAW MATERIALS

摘要

FIELD: food industry. SUBSTANCE: vegetable raw materials are ground and extracted by aqueous-alcohol solution having controlled pH, the latter process is carried out at pressure more than atmospheric. Extract is separated of solid phase and concentrated. Food organic acid or mixture of acids may be added into extract before its concentration takes place. EFFECT: improves efficiency of the method. 5 cl